Post of concrete or other material.



H. SCHL-WER.

POST 0F CONCRETE 0R 0THER MATERIAL. APPucATloN flu-LD JULY 25, |918.

1,299,787. Paten@ Apr. 8,191@

fia]

HUGO SCHLUTER, or Los ANGELES, CALIFORNIA.

POST F CONCRETE 0R OTHER MATERIAL.

Specification of Letters Patent.

Patented Apr. 8, 1919.

Application filed .T uly 25, 1918. Serial N o. 246,735.

T0 all whom it may concern n Be it known that I, HUGO SCHLUTER, a

i citizen of the United States, residing at Los r ngeles, in the county of Los Angeles, State of California, have invented new and useful Improvements in Posts of Concrete or other Material, of which the following is a specification.

This invention relates to concrete or other posts or similar elongated object-s, such as posts or poles which are lcommonly used for electric transmission, etc. It is a particular object Vof this invention to provide a construct-ion, readily adapted to be made in concrete, whereby a long article,'such as a post or pole, may be originally made and shipped in sections and assembled from those sections to form a strong post of any desired length; and it is a further object of this invention to provide such a construction in-a simple and effective form.

IVith these objects 1n view there are other objects yof the invention; and all such objects will be better understood from a following detailed description of preferred forms of devices embodying the invention, reference being had for this purpose to the accompanying drawings in vvhich-k Figure 1 is an elevation of one form of my vimproved post; Fig. 2 is an enlarged cross section of the same.; Fig. 3 is an elevation of'another form of my improved post; Fig. 4 is an enlarged cross section of the same; Fig. 5 is a similar enlarged cross section'showing a modified form of construction; Fig. 6 is a longitudinal section showing another modification in the structure of my post; and Fig. "l is a cross section of the same. l

Referring now lirst to Figs. 1 and 2, I show a post made up of a plurality of sections (any number of sections, the number depending upon the length of the post). Each of these sections comprises, in this form of post, a hollow cylindrical casting of concrete C which may be lreinforced with wire netting 10, and also may be reinforced with longitudinal rods 11. These longltudinal rods 11 afford anchors tovwhich the eye bolts 12 are anchored. Eye bolts 12 extend out to the outer surface of the concrete body and are provided with nuts 13 on their outer ends. Reinforcing.V rods 11 and eye bolts. 12 may be of any suitable number, preferably three or more, and shown 1n thIs construction as being four 1n number. Longitudinally along the outer surface of each of the concrete sections I run grooves 15; and in these grooves, when a post is assembled, metal strips or bars 16 are laid from end to end of the whole length of the post. T hese metal bars are, or have been previously, provided with spaced holes forthe bolts 12; and the nuts 13A are screwed down outside the metal bars to hold them in place.

yThe longitudinal metal bars hold the concrete section together, end to end, and provide longitudinal tension members on the outside of the post which prevent any bending of the post.

The bolts and nuts 12 and 13 may also be used for the purpose of securing steps 20 to the post and for securing a cross beam 21 and braces 22. 'A cap 23 of any suitable material nay be placed on the top of the finished post. This cap may be used as a lamp base, etc. l

In Figs. 3 and 4 I shov: a similar construction in which the concrete sections C1 are semi-cylindrical in form and are assembled in break-joint fashion so that no transverse joint extends completely across the whole post. Each semi-cylindrical section C1 has along one edge a bead 25 and along the other edge a corresponding groove 26, these beac's and grooves interlitting when the sectiois are assembled. It will be noted that the ojposing interfitting sections are duplicates o1 each other. Each section C1 has a single superficial groove 15a; and longitudinal bars 16a are laid in these grooves. Bolts 30 pass transversely through the sections and through the bars 16a, having nuts and collars 31 and 31a outside the bars. The nut 31 is screwed up tightly to hold the sections laterally together; and the longitudinal bars 16a perform the same otice as before, holding the'sections together longitudinally and in providing longitudinal tension members at the outside surface of the assembled posts. Liquid cement, asphaltum, or any suitable substance may be inserted in a joint between ribs 25 Vand grooves 26 so as to make the completed post water-tight. The bolts 30 may be extended to form steps 30a; and the bolts 30 may also be used, as in the other form herein eX-' plained, for securing the cross-arm 21 and bases 22.

In Fig. 5 I show a further modification of the form shown in Fig. 4 in which each section C1 is provided with two grooves 26, and

. metal,4 Wood, concrete, or any suitable material. In fact, it will be understood that my post construction may be made of any suitable material, not being limited to concrete, although preferably of that material.

In Fig. 6 I shbvv a lfurther inodication of the formi shown in Fig. 5; wherein the bolts 'are not extended clear through the post but areV provided as anchor bolts 30a Which are cast into,the concrete of the half sections C1. ach bolt 30l has on its inner end an inclined foot 30P, and the inclined feet of opposing bolts are adapted to act as inclined planes to dran7 the half sections'laterally together when the sections are slid longitudinally of each other;- as they may be so sl'id' and held invalinement by their tongue and groove engagement.- In this form, thev'side ars 16 hold the sections in proper longitudinal position after assembly.

In erecting my poles the sections may be 'made at a yfactory and carried to the place of use. ,The pole may be assembled wholly or partly onthe ground and then raised and set; or it may be Wholly assembled in a vertical position. The'lovver end. may be set in a concrete base Grand the interior of the erected post may be filled with concrete as indicated at 41, either par'tly or Wholly to Athe top of the pole. A central reinforcement or anchor rod 42 may be run' up through the pole from th'e'foundation 40. The completed pole thus becomes very stable and strong.` This filling also prevents movement of the parts 30a, 30h (Figs. 6 and 7) and of the bolts 30 (Figs. 3 and 4).

Having now described a preferred form of my invention, I claim: 1. In a sectional post, a plurality of post sections adapt-ed to be'joined end to end, said sections being substantially semi-cylin drical in formation and being assembled in break joint fashion; tension and connecting members extending longitudinally on the ex' terior surface of the several sections; and transverse rods tying overlapping sections and said connecting ,members together;

2; In a sectional post,a plurality of post sections adapted'to be joined end to end,

said sections being substantiallysemi-cylindrical information 'and being assembled in break joint fashion; tension andeonnectin'g members extending longitudinally on the eX- 'terior surface of the several sections, said sectionshaviipg longitudinal superficial grooves in Which said connecting members 'lieg and transverse rods tying overlapping sections and said connecting members together.

3. Ina sectional post, the combination of a plurality of hollow post sections adapted dinally of the sections, transverse bolts for holding the longitudinal members tothe sec# tions, and a .filling of concrete for the interior of the sections; said sections being semicylindrical in form and assembled to forni a cylindrical' post, and said bolts extending across the. hollow interior and embedded in the concrete filling.

4. In a sectional post', a plurality of partcylindricalisections joined end `te end in' HUGO SCHLUTER.

lVitness VIRGINIA I. BERINGER.

.to be joined end to enld, longitudinal tension Aand connecting members extendingv long1tu- 

